Prudential Preferred Realty has announced the top sales associates for March. The agents and their offices are:

Gloria Carroll, North Hills, top sales agent for residential sales units with four and top agent in residential sales volume with $3 million.

Scott Ludwick, Greensburg, was the top sales agent in residential listing units with 10 units.

Chuck Swidzinski, Butler, was the top agent in residential listings sold with 5.5 units.

Beverly McQuone and Susie Reuter, Sewickley, were the top agents in residential listing volume with $3.2 million and residential listings sold with $2 million.

Barbara Baker, Route 19 South, was the top agent in new construction listings units and new construction volume with four units and $2 million in volume.

Joe Volpe and Karen Henry, Greensburg, were the top agents for new construction listings sold with three units and 1.3 million.

The Arlene Guastella Group of Achieve Realty had listings of $2.4 million and sales of $2.1 million for March.

The team members are Arlene Guastella, multimillion-dollar producer and team leader; Jeff Lunderstadt, award-winning marketing director; and Mona Williams, Accredited Buyers' Representative and multimillion-dollar producer.

Prudential Preferred Realty has hired new agents.

Kathy Hallberg joined the Route 19 South office. She holds a degree in chemical engineering and holds an MBA. She previously worked with Howard Hanna Real Estate and will specialize in residential sales.

Konstantin Bourloganis also joined the Route 19 South office. He holds a bachelor of arts degree from the University of Pittsburgh and previously worked for Clairbrook Homes as a project manager.

Coldwell Banker Real Estate Services has hired a number of sales associates. The agents and their offices are:

Jon Osman, formerly of Howard Hanna, and Charles Hrutkay, formerly of Northwood, have joined the North Hills office.

Roger Sigworth, formerly of Prudential, has joined the Butler office.

David Bollinger, formerly of Howard Hanna, has joined the Fox Chapel office.

Antony Likavec has joined the Pleasant Hills office.

Eleanor Zenner, formerly of Keller Williams; Mimi Lohm, formerly of ReMax; Cheryl Ferri, formerly of Keller Williams; and John Fincham have all joined the Peters Township office.

Michelle Branham, formerly of Howard Hanna, and Carole Powell, formerly of Northwood have joined the Beaver office.

Wayne Aulbach, formerly of Howard Hanna, has joined the Airport/West Regional office.

Nicole Swett, formerly of Northwood, has joined the Shadyside office.

Howard Hanna Real Estate Services has formed a new business venture known as Great Lakes Surveying, which provides surveying services on a regional and national basis.

The new company, located in Cleveland, is open for business in Ohio and will offer services later this year in Pennsylvania, New York and West Virginia. Information, 216-229-7672.

On April 12, The Howard Hanna family was given the 2008 Ad Lucem Award at the Third Annual La Roche College Founders Gala. The award was presented by La Roche College president, Sister Candace Introcaso, on behalf of the school and its board of trustees in honor of the family's vision, leadership and determination, which built the Howard Hanna Real Estate into the third-largest privately owned real estate company in the United States.

The award is given to those whose dedication and commitment has made a positive and lasting contribution to society, the community and their professions while exemplifying the mission of La Roche College to educate future leaders and to promote peace and justice in a changing global society.

Howard Hanna Real Estate Services was created 50 years ago by Anne and Howard W. Hanna Jr. with one office in North Oakland. The company now has more than 3,600 employees in four states.